Keanu Reeves revealed the script for Bill and Ted is complete needs a few alterations (Picture: WireImage)

Reeves revealed that the script for Bill and Ted 3 is written, but needs to scale back on the CGI in order to fit the available budget.

He added that the time-travelling elements of the storyline will need rewriting.

‘The script is funny and there’s a story to tell there, [but] it needs to be adapted because right now it would cost, you know, $400million to make’ he told Access Hollywood.

‘There’s a rift in the universe and there’s all sorts of creatures. [And CGI], it ain’t cheap!’

The 47 Ronin star recently praised working on the first two Bill and Ted films.

‘I love those characters. I love the spirit of the film. I like the eternal goodness of these characters’ he said.

‘I always thought of them as beautiful fools. They bring a wonder and naivete to the harsh realities of the world.

‘I found them fun to play, and also working with Alex Winter was a great experience. We shared the same view of these characters and the film, and we had a lot of laughs making those movies. And Alex and I are friends.’